软件简介

TODAY AOP 是一个轻量级 Aop 框架

安装

<dependency>
    <groupId>cn.taketoday</groupId>
    <artifactId>today-aop</artifactId>
    <version>1.0.5.RELEASE</version>
</dependency>

• Maven Central

案例

• DEMO

使用说明

使用@Aspect标注一个切面

@Aspect
@Order(Ordered.HIGHEST_PRECEDENCE)
public class LogAspect {

    @AfterReturning(Logger.class)
    public void afterReturning(@Returning Object returnValue) {
        log.debug("@AfterReturning returnValue: [{}]", returnValue);
    }

    @AfterThrowing(Logger.class)
    public void afterThrowing(@Throwing Throwable throwable) {
        log.error("@AfterThrowing With Msg: [{}]", throwable.getMessage(), throwable);
    }

    @Before(Logger.class)
    public void before(@Annotated Logger logger, @Argument User user) {
        log.debug("@Before method in class with logger: [{}] , Argument:[{}]", logger, user);
    }

    @After(Logger.class)
    public Object after(@Returning User returnValue, @Arguments Object[] arguments) {
        log.debug("@After method in class");
        return returnValue.setSex("女");
    }

    @Around(Logger.class)
    public Object around(@JoinPoint Joinpoint joinpoint) throws Throwable {
        log.debug("@Around Before method");
//      int i = 1 / 0;
        Object proceed = joinpoint.proceed();
        log.debug("@Around After method");
        return proceed;
    }
}

public @interface Logger {
    /** operation */
    String value() default "";
}

@Service
public class DefaultUserService implements UserService {

    @Autowired
    private UserDao userDao;

    @Logger("登录")
    @Override
    public User login(User user) {
        log.debug("login");
//      int i = 1 / 0;
        return userDao.login(user);
    }
    @Logger("注册")
    @Override
    public boolean register(User user) {
        return userDao.save(user);
    }
}
@Repository
public class UserDaoImpl implements UserDao {

    private Map<String, User> users = new HashMap<>();

    public UserDaoImpl() {
        users.put("666", new User(1, "杨海健", 20, "666", "666", "男", new Date()));
        users.put("6666", new User(2, "杨海健1", 20, "6666", "6666", "男", new Date()));
        users.put("66666", new User(3, "杨海健2", 20, "66666", "66666", "男", new Date()));
        users.put("666666", new User(4, "杨海健3", 20, "666666", "666666", "男", new Date()));
    }

    @Override
    public boolean save(User user) {
        users.put(user.getUserId(), user);
        return true;
    }
    @Override
    public User login(User user) {

        User user_ = users.get(user.getUserId());
        if (user_ == null) {
            return null;
        }
        if (!user_.getPasswd().equals(user.getPasswd())) {
            return null;
        }
        return user_;
    }
}

@Test
public void test_Login() throws NoSuchBeanDefinitionException {

    try (ApplicationContext applicationContext = new StandardApplicationContext("","")) {
        UserService bean = applicationContext.getBean(UserServiceImpl.class);
        User user = new User();
        user.setPasswd("666");
        user.setUserId("666");

        long start = System.currentTimeMillis();
        User login = bean.login(user);
        log.debug("{}ms", System.currentTimeMillis() - start);
        log.debug("Result:[{}]", login);
        log.debug("{}ms", System.currentTimeMillis() - start);
    }
}